Dust curtain



June 10, 1941.

C. V. P. SHERWOOD DUST CURTAIN Filed Sept. 6, 1940 la/Z253.' Maa/,

Patented June 10, 1941 DUST CURTAIN Charlotte V. P. Sherwood, Chicago, Ill., assigner to Charlotte S. Denton, Chicago, Ill

Application september 6, 1940, serial No. 355,556

Claims.

Myinvention contemplates and provides a dust curtain for windows, to exclude dust, dirt and other foreign matter from entry into the room when the window is open.

A salient feature and advantage of the present invention residesin the manner of securing the dust curtain to a window, permitting quick and convenient attachment to, and detachment from, the window.

Another important object and advantage of the present invention-is the provision of a dust curtain for windows which substantially completely will cover the windo-w opening irrespective of the height to which the window sash is raised.

Another important feature and advantage of the present invention resides in the provision of a dust curtain which effectively and completely will cover the window openings of windows of various sizes without the necessity of any` alteration in the dust curtain, window frame, or parts.

Still another and veryimportant feature and advantage of the present invention resides inthe provision of a removable weight carrying sleeve adapted to be carried by the dust curtain to maintain the curtain in a position covering the window opening regardless of drafts or winds.

An additional feature and advantage of the present invention is the provision of a dust curtain which conveniently and thoroughly may be laundered and the parts for which may be kept in a small .compact unit for merchandising or when not in use.-

Other features, objects and advantages of the present invention will appear from the following detailed description having reference to the accompanying single sheet of drawings, wherein:

Figure 1 is a perspective view of the dust curtain of my invention in use von a window;

Figure 2 is a vertical sectional view taken in the plane of the line 2-2 of Figure 1 and looking in the direction indicated by the arrows;

Figure 3 is a view, on a slightly enlarged scale, of a portion of the window vsash and dust curtain at the left side of Figure 1;

Figure 4 is an enlarged vertical sectional View taken in the plane of the line 4-4 of Figure l and looking in the direction indicated by the arrows;

Figure 5 is a horizontal sectional view, slightly enlarged, taken in the plane of the line 5- 5 of Figure l;

Figure 6 is an enlarged perspective view of a portion 0f the lower edge of the dust curtain,

parts thereof being broken away to show details of the weight carrying sleeve; and

Figure 7 is an elevational View of the front of -the weight carrying sleeve.

Similar characters of reference refer to similar parts throughout the several views.

In the drawing the lower sash of a double hung sash window is indicated generally by I0, and .includes a lower rail II, Stiles I2 and meeting rail I3. The window frame has the usual stool I4, sill I5, apron I6, jambs I1 and inner stops I8.

A curtain I9 of marquisette, cheesecloth, or the like, is provided with aV hem at the top and a slightly Wider hem 2| at the bottom. Extending through upper hem 20 is a coil tension spring 22, the end loops 23 of which (as best illustrated in Figure 3) are held by hooks 24 carried by mounting brackets 25. Brackets 25 are secured to the lower ends of stiles I2 of sash I0 as near to the inner stops I8 of the window frame as clearance will allow.

Into the lower hem 2| is adapted to be inserted a weight-carrying sleeve 26 which has secured -therein spaced weights 21 as will more fully hereinafter appear. By utilizing spaced Weights I am enabled to keep the lower end of the curtain exible for several very important reasons.- It is necessary that there be ample fullness in the curtain so the sides of the curtain will tend to abut the side trim or inner stops at the sides of the window frame. The mounting brackets 25 ywill tend to hold the upper portion of the curtain (that portion nearand at hem 20) between the sides of the window frame, but the remainder of the curtain, because of such fullness, will tend to bulge or ease outwardly toward'the sides of the window frames completely to cover the window opening. For Apurposes of illustration I have shown the upper portion of the curtain away from close contact with the brackets 25 but it will be understood that, properly hung, the curtain will substantially completely cover the window opening at the sides.

The curtain I9 is of such height as preferably to hang down below the window stool I4 to the apron I6 when the window opening is at its maximum. In most instances it will be found that the lower weighted end of such curtain will touch or rest upon the floor when the window is closed.

Referring now to Figures 5, 6 and 7, I have shown in detail the preferred form of weightcarrying sleeve 26 which consists of separated or spaced weights 21, preferably of lead, secured in the sleeve 26 which preferably consists of a material somewhat stronger and preferably stiffer than the curtain material I9. Weights 2'! are secured in sleeve 253 by means of metal staples or clips 23 from an ordinary stationery stapling machine fastened through the sleeve material ai; both sides of the weights. The sleeve, therefore, may quickly be assembled.

The removability of the weight-carrying sleeve permits ready laundering of the curtain proper, which, when used in industrial and metropolitan areas, needs frequent laundering. It will not, of course, be necessary to launder the weight-carrying sleeve as frequently as the curtain proper. However, my construction permits convenient laundering of this element also when it does become necessary. Because of the flexibility of the assembled sleeve, through the use of spaced weights, such sleeve may readily be withdrawn from the curtain and laundered without removing the weights.

ie use or spaced independent Weights in the sleeve, allows the curtain to be readily folded for compact merchandise packaging or for storage when not in use. Also the use of such spaced independent weights permits exibility of the curtain for adaption for use on windows of varying sizes. For use on smaller windows the curtain material merely need be gathered at the upper hem and the flexible lower weight-carrying portion of the curtain will adjust itself to such window by draping or bunching somewhat in harmony with the gathers at the upper hem. However, and as preferred, when the weight-carrying sleeve is substantially longer than the window opening, and the sleeve material is relatively strong and stii as described, the curtain will assume the shape shown in Fig. l, i. e., it will tend fully to cover the window opening. The use of a tension spring for mounting the curtain likewise lends itself for use on windows of diierent width.

In some instances, as for example on wide windows, it `may be necessary to support the mounting spring 22 intermediate its ends due to the load of the weights 2l. Under such conditions, a curtain hook 29 may be used to support the spring. Such spring, in addition to its adaptability as a mounting for windows of different sizes, also tends, through its normal tension, to hold the upper regions of the curtain rmly against the lower rail i or" the window sash.

it should also be noted that an elastic string may be used in place of the tension spring 22, or curtain material having inherent elastic qualities may be used. In some instances an extensible rod `may satisfactorily serve. It is contemplated that such modifications are within the purview of the invention. I wish also to call attention to the fact that the weights may be mounted on the bottom of the curtain by clips or the like, and

the weight carrying sleeve shown and described represents merely a preferred embodiment.

Having thus illustrated and described a preferred embodiment of my invention, I wish to avail myself of all equivalent embodiments as defined by the appended claims.

What I desire to secure by Letters Patent of the United States is:

1. A device of the class described, comprising a curtain having a hem along each of its upper and lower edges, said curtain being wider than a window openingV which it is adapted to cover, an elongated tension spring extending through the upper hem oi said curtain, said spring being detachably secured aft each end to the sides of the lower end of a window sash closely adjacent the window frame, and a sleeve freely insertable in the lower hem of the curtain, said sleeve having a plurality of independent weights secured at spaced intervals therein.

2. A device of the class described, comprising a curtain having a hem along each of its upper and lower edges, said curtain being wider than a window opening which it is adapted to cover, means extending through the upper hem of said curtain for detachably mounting the curtain to the lower end of a window sash closely adjacent the window frame, and a sleeve removably carried in the lower hem and having a plurality oi independent weights secured at spaced intervals therein.

3. A device of the class described, comprising a curtain having a hem along its upper edge, said curtain being wider than a window opening which it is adapted to cover, means extending through said hem for mounting the curtain on the lower end of a window sash, said means being detachably secured at each end to hooks carried by said sash closely adjacent the window frame, and a plurality of independent weights removably car ried by the lower edge of said curtain.

4. A device of the class described, comprising a curtain, the upper edge of said curtain being adapted to be mounted along the lower end of a window sash, said curtain being wider than a window opening which it is adapted to cover, means for detachably securing the curtain to the window sash, and a removable weight carried by the lower edge of said curtain.

5. A device of the class described, comprising a curtain, the upper edge of said curtain being adapted to be mounted along the lower end oi a window sash, said curtain being wider than a window opening which it is adapted to cover, means forA detachably securing Vthe curtain to the window sash, and a plurality of independent weights removably secured at spaced intervals to the lower edge of said curtain.

CHARLOTTE V. P. SHERVVGOD. 

